are LCD displays easier on your eyes?

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A perfunctory google search indicates as much, buth the results mostly come from manufacturers and stores. Anyone got any 'real life' experience to throw into the mix?

I've been getting headaches at work recently, and I think it might be CRT related....

o.c.p., Thursday, 9 March 2006 04:17 (twenty years ago)

I can only speak for myself but I have got to say HELL YES. In my last job my eyes really started to give me hell - the CRT at my work had a frequency slightly out of phase and the flickering was giving me terrible eye headaches.

Now that I use an LCD at work and home, the headaches and blurred vision are gone.

The only thing to look out for though is LCDs still need fine-tuning, they can easily end up blurry or smeared if the phase settings arent tweaked (and thus, still give you a headache).

Trayce (trayce), Thursday, 9 March 2006 04:22 (twenty years ago)

Nothing worse than a low refresh CRT and a flourescent light, for giving me a headache.

Ed (dali), Thursday, 9 March 2006 08:22 (twenty years ago)

The only thing to look out for though is LCDs still need fine-tuning, they can easily end up blurry or smeared if the phase settings arent tweaked (and thus, still give you a headache).

Especially if you use them at less than their design resolution.

(most people at work have 1280x1024 monitors. Most of them run their monitors at 1024x768 or even 800x600, because they think that at native res things are "too small")

Forest Pines (ForestPines), Thursday, 9 March 2006 08:26 (twenty years ago)

noobs

the kit! (g-kit), Thursday, 9 March 2006 10:23 (twenty years ago)

Surely running screens at unnecessarily high resolutions is just another facet of the endless stream of IT snobbery? Why would you *want* to squint at tiny icons and words? My new laptop has a 1680x1050 screen and I am struggling with some apps at this resolution - I was even wondering if you could specify resolution by application rather than having one master res.

Markelby (Mark C), Thursday, 9 March 2006 12:09 (twenty years ago)

Most applications will allow you to set a default zoom level.

Ed (dali), Thursday, 9 March 2006 12:10 (twenty years ago)

Problem is that LCDs (including those in laptops) have a native resolution: pixels are physical squares in the display, and their size cannot be changed. Sending data to an LCD as a resolution other than its native resolution results in a blurred image, which makes reading text even more horrible than it usually is on a computer screen.

As native resolutions increase, the physical dimentions of, say, a 12pt letter become smaller and smaller, and there's no way to change this without compromising on readability. That's progress for you.

Mike W (caek), Thursday, 9 March 2006 12:13 (twenty years ago)

You don't notice flicker on LCDs because the response time is non-zero; it takes time for one frame to fade and the next one to be redrawn, which has the effect of blurring out flicker. A good quality, modern CRT (not an ancient one bought at a charity shop for a tenner) will generally have a flicker rate that is imperceptible (> 85Hz is good enough for most people).

Best advice is to get rid of the fluorescent light if possible (they have a flicker which can strobe with your monitor's refresh), play around with text smoothing (some people prefer Cleartype -- or the Mac equivalent -- some people don't), crank up the font size/zoom in Firefox, Word, and global preferecnes, and print out any document longer than a few pages.

Mike W (caek), Thursday, 9 March 2006 12:19 (twenty years ago)

Alternatively, adjust the DPI setting in the OS, which will result in bigger shit at native resolutions.

steal compass, drive north, disappear (tissp), Thursday, 9 March 2006 13:20 (twenty years ago)

(To answer the question, I used to get regular migraines at work until they gave me a couple of LCD monitors)

steal compass, drive north, disappear (tissp), Thursday, 9 March 2006 13:22 (twenty years ago)

the physical dimentions of, say, a 12pt letter become smaller and smaller

Not if you have a sensible operating system, which will query the monitor's DPI (not all monitors get this right, though) and do its best to scale its letterforms so that 1 point on the screen is actually 1 point of physical length.

Forest Pines (ForestPines), Thursday, 9 March 2006 13:58 (twenty years ago)

My new laptop has a 1680x1050 screen

imagine how i feel - mine is 1920x1200!! and it's only 15" i have to magnify explorer's text to near max when i want to read anything from arms length.

ken c (ken c), Thursday, 9 March 2006 14:06 (twenty years ago)

problem with lowering resolution on an LCD is that unless it's like exactly half the resolution, you're gonna get some pixels that falls in between pixels... if that makes sense

ken c (ken c), Thursday, 9 March 2006 14:07 (twenty years ago)

some websites look funny on my laptop because the text gets compensated but images don't

(explorer on the laptop does auto scale my images, but then any "text" images look shite)

ken c (ken c), Thursday, 9 March 2006 14:11 (twenty years ago)

actual answers now: yeah LCD is so much better on my eyes than CRTs.. i get so used to looking at them now i really notice flickers on the old monitors.

however, i find that i get zombie eyes if i set the display too bright (i look elsewhere and can't see because everything looks really dark) and both work and home LCD displays only let you set the brightness to a not very low level (that is still too bright for me), and that causes me headaches too.

ken c (ken c), Thursday, 9 March 2006 14:13 (twenty years ago)

Alot of people ran CRTs at 60hz and therefore switching to a device with no scanning lines makes a big difference to them, of course they should have been running at 85-100hz on the CRTs.

LCDs are good at native or half native res say 1600x1200 and 800x600 but don't look too good at non native resolutions this is why gamers prefer CRTs as certain games will run too slowly at the high native resolutions of panels, not to mention better colour gamut and a lack of ghosting caused by high response rate on alot of LCDs, recently there has been debate about an upadate latency on LCDs which may mean the display is lagging behind the video frame.

Another issue I see time and time again is 5:4 monitors at 4:3 resolutions or vice versa.

Most 17 inch LCD panels are native at 1280x1024 which is a 5:4 resolution and most/all CRTs are 4:3 resolution so a 19" CRT at a similiar res would be at 1280x960, some panels are 4:3 though, usually the ones at 1600x1200 like the Dell 2001FP.

Then there are widescreen displays, which are usually 16:10 or 1680 X 1050 for a 20" panel like the 2005FPW.

If you dont set this correctly your circles will be ovals and your squares.

As regards stuff being to small on high res panels you can change DPI and use large icons and font size, also remember to use cleartype to make text look really sharp.

There is only so you can do with the GDI+ implementation on Windows XP look for Vista to allow true desktop scaling hopefully, allowing you to run native resolution but scale exactly how you'd like to keep things sharp.

Jarlr'mai (jarlrmai), Thursday, 9 March 2006 16:01 (twenty years ago)

...and your squares will be rectangles.

Jarlr'mai (jarlrmai), Thursday, 9 March 2006 16:01 (twenty years ago)

The answer is a pretty much unqualified "yes." LCDs are still inferior to CRTs in many ways (contrast, response rate, color accuracy, etc), and are worse for movies & games, but if you're sitting in an office doing standard office-type stuff, an LCD will be much easier on your eyes and head.

In the meantime though, raise your CRT's refresh rate to something, anything above 60hz.

Chris H. (chrisherbert), Thursday, 9 March 2006 16:22 (twenty years ago)

Greyscale monitors rule.

shieldforyoureyes, Thursday, 9 March 2006 17:26 (twenty years ago)

for digital radiography, yes

Jarlr'mai (jarlrmai), Thursday, 9 March 2006 21:31 (twenty years ago)

Yeah, it seems like the only greyscale monitors still manufactured are
for medical applications.
The one on my desk is from 1993. I haven't been able to find a more
recent one.

shieldforyoureyes, Friday, 10 March 2006 03:07 (twenty years ago)


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